Swift heavy ion irradiation induced modifications in magnetic and dielectric properties of Mn–Ca ferrite

Dolia, S. N.; Sharma, Pratibha; Dhawan, M. S.; Kumar, Sudhish; Prasad, Arun S.; Samariya, Arvind; Pareek, S. P.; Singhal, R. K.; Xing, Yutao; Alzamora, M.; Saitovitach, E.

doi:10.1016/j.apsusc.2011.06.011

Cited by 34 publications

(11 citation statements)

References 17 publications

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“…Irradiation induced modifications in the microstructure of these materials are generally investigated by various methods like X-ray diffraction (XRD) [11,12], transmission electron microscopy (TEM) and scanning electron microscopy (SEM) [13][14][15]. Techniques like Mössbauer and electron paramagnetic (EPR) spectroscopy are employed to provide the information about the local structure of irradiated ferrites in past [16][17][18]. Although these techniques are superior but restricted to only Fe ion or paramagnetic species in the system, however any technique based on the vibration modes of any system like Raman and Fourier Transform Infrared (FTIR) spectroscopy may throw more light on the irradiated system.…”

Section: Introductionmentioning

confidence: 99%

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

Singh

Dixit

Srivastava

et al. 2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Section: Introductionmentioning

confidence: 99%

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

Singh

Dixit

Srivastava

et al. 2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The higher intensity diffraction peaks in XRD pattern of irradiated barium hexaferrite sample clearly indicates that the mean particle size is in the range of nanometers [19,20]. The crystallite sizes were calculated using the Scherer's formula using full-width at half maxima (β), wavelength (λ) of x-ray and Bragg angle θ.…”

Section: Resultsmentioning

confidence: 99%

Effect of 200 MeV Ag¹⁶⁺ swift heavy ion irradiation on structural and magnetic properties of M-type barium hexaferrite

Packiaraj

Sakthipandi²,

Hossain

2019

Mater. Res. Express

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M-type barium hexagonal ferrite (BaFe 12 O 19 ) has been synthesized by sol-gel auto combustion method. The synthesized material was irradiated with 200 MeV Ag 16+ ions using the 15UD Pelletron tandem accelerator and the changes in structural and surface morphology of material were investigated. The pristine (as-synthesised) and irradiated samples were characterized using different experimental techniques like x-ray diffraction (XRD), Fourier-transform infrared spectroscopy, transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The strong absorption peak between 580 and 440 cm −1 in the infrared spectrum and XRD confirmed the formation of ferrite structure for both irradiated and pristine samples. XRD peaks for the irradiated barium hexagonal ferrite were slightly broadened when compared pristine ferrite samples. The crystallite size of the irradiated barium hexagonal ferrite was higher than that of pristine barium hexagonal ferrite and is consistent with TEM images. Both saturation magnetization and coercivity were decreased with irradiation.

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“…The mixed solution was heated slowly to 90 o C with stirring constantly to transform it in to a Xero-gel. Further heating resulted in burning of the gel in a self-propagating combustion manner until all the gel gets burnt out completely to form a loose powder [8].…”

Section: Methodsmentioning

confidence: 99%

TEMPERATURE DEPENDENT DIELECTRIC BEHAVIOR OF NANOCRYSTALLINE Ca FERRITE

Samariya

Pareek

Sharma

et al. 2013

Int. J. Mod. Phys. Conf. Ser.

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Dielectric behaviour of Nanocrystalline CaFe 2 O 4 ferrite synthesized by advanced sol-gel method has been investigated as a function of frequency at different temperatures. Rietveld profile refinement of the XRD pattern confirms formation of cubic spinel structure of the specimen.The dispersion in dielectric behavior of CaFe 2 O 4 ferrite sample has been observed in the temperature range of 100-250˚C as a function of frequency in the range 75 kHz to 10 MHz Both the real value of dielectric constant (ε′) and the dielectric loss factor (tanδ) decrease with frequency. This decrease in the values of ε′ and tanδ could be explained on the basis of available ferrous, i.e. Fe 2+ , ions on octahedral sites such that beyond a certain frequency of applied electric field the electronic exchange between the ferrous and ferric ions i.e. Fe 2+ ↔Fe 3+ cannot follow the applied alternating electric field.

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Swift heavy ion irradiation induced modifications in magnetic and dielectric properties of Mn–Ca ferrite

Cited by 34 publications

References 17 publications

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

Effect of 200 MeV Ag¹⁶⁺ swift heavy ion irradiation on structural and magnetic properties of M-type barium hexaferrite

TEMPERATURE DEPENDENT DIELECTRIC BEHAVIOR OF NANOCRYSTALLINE Ca FERRITE

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Swift heavy ion irradiation induced modifications in magnetic and dielectric properties of Mn–Ca ferrite

Cited by 34 publications

References 17 publications

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

HRTEM and FTIR investigation of nanosized zinc ferrite irradiated with 100MeV oxygen ions

Effect of 200 MeV Ag16+ swift heavy ion irradiation on structural and magnetic properties of M-type barium hexaferrite

TEMPERATURE DEPENDENT DIELECTRIC BEHAVIOR OF NANOCRYSTALLINE Ca FERRITE

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Effect of 200 MeV Ag¹⁶⁺ swift heavy ion irradiation on structural and magnetic properties of M-type barium hexaferrite